Chrysler Concorde 1993 Service Manual page 305

pin numbers.
• If shorted to ground disconnect speaker connector
and recheck from the amplifier for short to ground.
• If still shorted to ground repair wires. Not shorted
to ground replace speaker.
• No Short to ground, check speaker resistance at
amplifier connector for two to five ohms.
• If resistance is OK refer to Radio Diagnosis. If ra-
dio checks OK replace amplifier.
• If resistance is less than two ohms replace speaker.
If resistance is OK repair wires
CONDITION: MECHANICAL NOISE DISTORTION
• Check trim for loose parts and speaker attach-
ments for buzzes
• Remove speaker still connected and listen for dis-
tortion. If distortion remains replace speaker.
CONDITION: One Speaker Non-operative
• Remove output signal connector from amplifier
and check for two to five ohms resistance to the non-
operative speaker. Refer to Fig. 15 for the appropri-
ate pin numbers.
• If resistance is less than two ohms, test speaker for
resistance.
• If OK repair wire. If not replace speaker.
CONDITION: ALL SPEAKERS NON-OPERATIVE
• Check radio for being ON, are the display lights
on
• Radio not ON, refer to Radio Diagnosis
• Check fuses, amplifier connectors and wires for
proper connection
• Check Pin 9 and Pin 28 of the amplifier for bat-
tery voltage
• Check Pin 29 for ground
• If voltage OK replace amplifier
• If pin 28 has battery voltage and pin 9 has 0 volt-
age. Refer to Power Antenna Diagnosis and test volt-
age at antenna connector. Repair wiring.
• If pin 9 has battery voltage and pin 28 has 0 volt-
age. Check pin 28 for short to ground.
• If shorted to ground repair wire
• If no short to ground check fuse number 8 for
blown fuse. Check cigar lighter and horn prior to re-
placing amplifier.
• If fuse blows again replace amplifier
AUDIO SYSTEM 8F - 9